Vehicle wiring diagrams are here:

Wiring Diagrams

Downloadable PDF - 2014 wiring diagrams

www.jeeppatriot.com

There are no schematic diagrams for the internal electronics.

 

Thank you Sandstone for the quick response,
My patriot is 2007, and the Mopar website states that chrysler used this radio exclusively in very few models of 2006 2007 and 2008 .
As a matter of fact , the socket pins N 8 9 10 17 18 19 and 20 are spare.I can't find any closer configuration in the online available diagrams.